Bearings
-Product Name: Ceramic Bearing Ball/Micro ceramic balls
-Material: G5 SI3N4 Ceramic Bearing Ball
-Size: 1mm, 1.2mm, 1.34mm, 1.5mm, 1.588mm, 1.6mm, 1.8mm, 2.5mm, 2.381mm, 2.5mm
Error: 5/10000000 inches
- Hardness:HRC=91- High temperature resistance: 1200-Note:
This ceramic ball is a high-grade silicon nitride ceramic ball with a very bright appearance and high precision level. It has a wide range of applications, such as all ceramic bearings, mixed ceramic bearings, tools and measuring tools, valve seals, pumps, valves, etc.
Compared to steel balls, the main advantages of silicon nitride balls are:
1. Lighter than steel balls by 59%, greatly reducing the centrifugal force, rolling, and wear on the channel during high-speed and accelerated operation of the bearings;
2. The elastic modulus is 44% higher than that of steel, which means that the deformation under stress is significantly reduced compared to that of steel balls;
3. The hardness is higher than that of steel, with an HRC of 91;
4. Low friction coefficient;
5. The coefficient of thermal expansion is 1/4 of that of steel and can withstand temperature fluctuations;
6. Easy to achieve high surface smoothness, Ra can reach 4-6 nanometers;
7. High temperature resistance: Silicon nitride ceramic balls still have high strength and hardness at a high temperature of 1050 ° C;
8. Never rust, can work under oil-free lubrication conditions;
9. More resistant to chemical corrosion than steel;
10. No metal pollution;
11. Non magnetic;
12. Electrical insulation.
13. There is no adhesive wear;
The combination of these excellent properties makes silicon nitride the preferred material for high-performance bearing rolling elements.
Purpose:
Silicon nitride ceramic balls can be used for various bearings with extreme performance requirements: high-speed/ultra high speed bearings, high-precision bearings, vacuum bearings, high/low